Volvo XC90: Driver support / Collision risk warning from driver support
The driver support systems Adaptive Cruise Control* and Pilot Assist* can
help alert the driver if the distance to the vehicle ahead suddenly decreases to
an unsafe distance.

Collision warning audible signal and symbol
Audible signal at risk of collision
Collision warning symbol
Camera/radar sensor distance monitoring
Adaptive Cruise Control and Pilot Assist use approx. 40% of the braking capacity.
If a situation requires more braking force than driver support can provide, and
if the driver does not apply the brakes, a warning light and audible warning signal
will be activated to alert the driver that immediate action is required.
WARNING
The driver support system only issues a warning for vehicles detected by
its radar unit – thus, a warning may come after a delay or not at all. Never wait
for a warning. Apply the brakes when necessary.

Collision warning symbol on the windshield
In vehicles equipped with a head-up display*, a flashing warning symbol will
be displayed on the windshield.
NOTE
Visual warnings on the windshield may be difficult to notice in cases of
strong sunlight, reflections, extreme light contrasts, or if the driver is wearing
sunglasses or is not looking straight ahead.
* Option/accessory.
Passing assistance can be used with Adaptive Cruise Control* or Pilot Assist*.
Several conditions must be met for passing assistance to be possible.
In order to activate passing assistance:
your vehicle must be following a vehicle ahead (target vehicle)
your vehicle's current speed must be at least 70 km/h (43 mph)
the set speed must be high enough to safely pass another vehicle...
At certain speeds, vehicles with automatic transmissions and the driver support
functions Adaptive Cruise Control* and Pilot Assist* can switch target vehicles...
Other information:
Here are examples of some of the messages and symbols related to the camera
and radar units that may be displayed in the instrument panel.
Sensor blocked
If this symbol and the message Windscreen sensor Sensor blocked, see
Owner's manual is displayed in the instrument panel, it means that the camera
and radar unit are unable to detect other vehicles, cyclists, pedestrians and large
animals in ..
The starter battery is used to start the electrical system and power the starter
motor and other electrical equipment in the vehicle. The vehicle has a single-pole
electrical system that uses the chassis and engine mount as conductors.
The vehicle has a voltage-regulated alternating current generator.
The starter battery is a 12 V battery, dimensioned for the carbon dioxide-reducing
functions S..